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Cheap yeast extract/ proteose peptone for YPD?

Cheap yeast extract/ proteose peptone for YPD? - Yeast Forum

Cheap yeast extract/ proteose peptone for YPD? - Discuss research on yeast the model organism. Post questions and topics on the molecular biology and genetics of Saccharomyces cerevisiae and other yeast species.

Dear All
I saw a thread similar to my current question back in the
mid 90s, but was wondering if anyone has an update.
We currently buy yeast extract and proteose peptone from
Becton Dickinson (via Fisher) for making YPD. However I
am beginning to do some large scale fermenter growths and
the cost is getting prohibitive. I notice that there are
much cheaper versions available (eg Sigma yeast extract
REF 09182 is almost 5 times cheaper per kg than Bacto
Yeast Extract). My question is whether anyone can
recommend a good (and cheap) combination of yeast extract
and proteose peptone that allows normal yeast growth (to a
similar OD etc).

Alternatively does anyone have any good ideas about cheap
media receipes for growing yeast to very high density in a
fed-batch fermenter run? Anyone ever tried using malt
extract (from a brew shop - seems cheap) for a protein
expression related project?

We export Yeast Extract and Peptone since 2001.
As an extract of autolyzed yeast cells, Yeast extract is a mixture of amino acids, peptides, water soluble vitamins and carbohydrates and can be used as additive for culture media. Also used in ham, sausage production and spread on toast or sandwiches at home foods as a natural favoring.

This product is full of VB1,VB2,VB6,VB12,niconacid folvite, pantothen biotin, and contains 19
kinds of amino acid and 5’ nucleotide etc.

Our Peptones are made from bovine bone with meat. They have high protein, high activity, medium phosphorus, few moisture and ash etc characters . Edible Peptone conforms to sanitary standards in microbiology aspects.
They are widely used as microbiology culture media, nutriment additives, edible fungus
culture media and in medicine industry.